1555216260200 has 48 divisors (see below), whose sum is σ = 3617459926080. Its totient is φ = 621814311360.

The previous prime is 1555216260193. The next prime is 1555216260281. The reversal of 1555216260200 is 20626125551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1242662 + ... + 2157461.

It is an arithmetic number, because the mean of its divisors is an integer number (75363748460).

Almost surely, 2^{1555216260200} is an apocalyptic number.

1555216260200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1555216260200 is an abundant number, since it is smaller than the sum of its proper divisors (2062243665880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1555216260200 is a wasteful number, since it uses less digits than its factorization.

1555216260200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402426 (or 3402417 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 1555216260200 in words is "one trillion, five hundred fifty-five billion, two hundred sixteen million, two hundred sixty thousand, two hundred".